A kind of hybrid polyester resin for indoor thermal transfer matt powder coating and preparation method thereof

A powder coating and polyester resin technology, applied in the field of polyester resin, can solve the problems of unusable thermal transfer printing, poor impact resistance of coating, poor matting performance, etc., and achieve excellent transfer effect and stable matting performance , low gloss effect
CN107936236BActive Publication Date: 2020-09-18GUANGZHOU KINTE IND
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGZHOU KINTE IND
Publication Date
2020-09-18

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Abstract

The invention discloses mixed polyester resin for an indoor thermal transfer printing matt powder coating. The resin is carboxyl-terminated saturated polyester resin, and has an acid value of 45-75 mgKOH / g, a glass transition temperature of 55-60 DEG C, a softening point of 93-103 DEG C, a melt viscosity of 3000-4500 mPa*s at 200 DEG C and reactivity of 150-250 s at 180 DEG C, and the resin is mainly prepared by performing a melt polycondensation reaction on the following monomer components in percent by mass: 30-37% of a diol, 0-3% of a trihydric alcohol, 55-62% of an aromatic dibasic acid,0-5% of a fatty acid, 5-10% of an acidolysis agent, 0.01-0.15% of an esterifying catalyst and 0.01-0.8% of a thermal transfer printing assistant. The polyester resin has a high glass transition temperature, good storage stability, and a good appearance levelling property. The invention also discloses a preparation method of the mixed polyester resin for the indoor thermal transfer printing matt powder coating.
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Description

technical field

[0001] The invention belongs to the technical field of polyester resins, in particular to a hybrid polyester resin for indoor thermal transfer matte powder coatings and a preparation method thereof. Background technique

[0002] At present, the application of powder coatings in the field of decoration is becoming more and more extensive, and the varieties are increasing, but the main ones are high-gloss types. With the improvement of production quality, people are no longer satisfied with the monotonous gloss, so decorative powder coatings with different glosses came into being. The surface gloss of the coating film is selected according to subjective and objective conditions such as the user's aesthetics and actual use requirements. In general, noble, beautiful, and luxurious decorations require high gloss, while quiet, comfortable, and elegant environments require lower gloss. Usually outdoor machinery, car casings, etc. require high gloss, while indoor a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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